61 lines
2.2 KiB
JavaScript
61 lines
2.2 KiB
JavaScript
// Copyright (C) 2016 Dmitry Chestnykh
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// MIT License. See LICENSE file for details.
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import { describe, expect, it } from 'vitest';
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import { select, lessOrEqual, compare, equal } from "./constant-time.js";
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describe("constant-time.select", () => {
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it("should select correct value", () => {
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expect(select(1, 2, 3)).toBe(2);
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expect(select(1, 3, 2)).toBe(3);
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expect(select(0, 2, 3)).toBe(3);
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expect(select(0, 3, 2)).toBe(2);
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});
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});
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describe("constant-time.lessOrEqual", () => {
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it("should return correct result", () => {
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expect(lessOrEqual(0, 0)).toBe(1);
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expect(lessOrEqual(0, Math.pow(2, 31) - 1)).toBe(1);
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expect(lessOrEqual(2, 3)).toBe(1);
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expect(lessOrEqual(3, 3)).toBe(1);
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expect(lessOrEqual(4, 3)).toBe(0);
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expect(lessOrEqual(5, 3)).toBe(0);
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});
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});
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describe("constant-time.compare", () => {
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const a = new Uint8Array([1, 2, 3, 4]);
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const b = new Uint8Array([1, 2, 3, 4]);
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const c = new Uint8Array([1, 2, 5, 4]);
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const d = new Uint8Array([1, 2, 3]);
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const z = new Uint8Array(0);
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it("should return 0 if inputs have different lenghts", () => {
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expect(compare(a, d)).toBe(0);
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});
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it("should return 1 if inputs are equal", () => {
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expect(compare(a, b)).toBe(1);
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});
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it("should return 0 if inputs are not equal", () => {
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expect(compare(a, c)).toBe(0);
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});
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it("should return 1 if given zero-length inputs ", () => {
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expect(compare(z, z)).toBe(1);
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});
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});
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describe("constant-time.equal", () => {
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const a = new Uint8Array([1, 2, 3, 4]);
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const b = new Uint8Array([1, 2, 3, 4]);
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const c = new Uint8Array([1, 2, 5, 4]);
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const d = new Uint8Array([1, 2, 3]);
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const z = new Uint8Array(0);
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it("should return false if inputs have different lenghts", () => {
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expect(equal(a, d)).toBe(false);
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});
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it("should return true if inputs are equal", () => {
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expect(equal(a, b)).toBe(true);
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});
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it("should return false if inputs are not equal", () => {
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expect(equal(a, c)).toBe(false);
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});
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it("should return false if given zero-length inputs ", () => {
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expect(equal(z, z)).toBe(false);
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});
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});
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//# sourceMappingURL=constant-time.test.js.map
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